Blood & circulation.

Slides:



Advertisements
Similar presentations
Blood & circulation Circulation  Your body resembles a large roadmap, There are routes or “arteries” that take you downtown to the “heart” of the city.
Advertisements

Cardiovascular System Health. Cardiovascular System Why is it called a transport system? 1. Transportation of fuel -carries food and oxygen to cells 2.
Blood & circulation.
Topic: Circulatory System
What is it???? This muscle never stops working…
Circulatory System.
Blood & circulation Visit For 100’s of free power points.
Circulation Your body resembles a large roadmap, There are routes or “arteries” that take you downtown to the “heart” of the city.
The Circulatory System. Transportation system by which oxygen and nutrients reach the body's cells, and waste materials are carried away.
The Circulatory System
Do Now: Can you use the stethoscope to hear your heart beat? Count how many times it beats a minute. Hold your breath. Does your heart beat? Is there.
The Circulatory System. The human heart beats more than 2.5 billion times in an average lifetime. The heart produces enough pressure each time it pumps.
Blood & circulation Define these terms -Cardiovascular system -Heart -Atrium -Pacemaker -Ventricle -Valve -Artery -Capillary -Vein -Aorta -Coronary artery.
THE CARDIOVASCULAR SYSTEM Your “real” heart  The muscular pump that makes the cardiovascular system work. It is made up of cardiac muscle and provides.
Chapter 16 Circulation.
The Circulatory System 123rf.com. Where is your heart located? Many people think their heart is located on the left side of their chest. It is actually.
Circulation - The Body’s Transport System Bellringer: 1.) Write today’s objective, activities, and homework on unit planner. 2.) Write the answer to the.
Also called the circulatory system, it consists of the heart, blood vessels, and blood. It carries needed substances to cells and carries waste products.
The CIRCULATORY SYSTEM Circulation  Your body resembles a large roadmap, There are routes or “blood vessels” that take you downtown to the “heart” of.
Circulatory Review. Heart Parts 7. Pulmonary Artery Right Atrium Right Ventricle Aorta Left Atrium Left ventricle Septum.
The Circulatory System. Function  Consists of the heart and blood vessels  Carries oxygen and nutrients to the body’s cells and remove carbon dioxide.
Chapter 9 section 2 Circulatory System
Circulatory System - the system of blood, vessels, and heart concerned with circulation of body fluids. Plasma - the watery part of blood cell that carries.
Cardiovascular System AKA Circulatory System. Purpose of the Cardiovascular System Gets needed materials from one part of the body to another, such as.
Cardiovascular System Key Terms 7 th Grade Science.
 The Heart  Blood Vessels(veins, arteries, etc.)  Blood also plays a very important role.
Cardiovascular System Health Mrs. Wagner. Cardiovascular System Pathway through which blood can carry materials throughout the body (NC) Blood - Brings.
Blood & circulation Circulation  Your body resembles a large roadmap, There are routes or “arteries” that take you downtown to the “heart” of the city.
Cardiovascular System. Fun Facts!!!  If we looked at all the blood vessels in your body, what would the total length be?  Around the world twice! 
The Circulatory System. The Learning Objectives Define the parts of the circulatory system and what they do Point out the four chambers of the heart and.
Blood & circulation Circulation  Your body resembles a large roadmap, There are routes or “arteries” that take you downtown to the “heart” of the city.
The Circulatory System. Transportation system by which oxygen and nutrients reach the body's cells, and waste materials are carried away.
The Circulatory System Chapter 16 n Right side of the heart n Lungs (here it gets oxygen) n Left side of the heart n Body (here it drops off the oxygen)
Circulatory/R espiratory System. What makes up the circulatory system? Heart Blood Blood Vessels Function: Transportation system by which oxygen and nutrients.
Blood and Breathing: circulatory and respiratory systems  Two connected organ systems that depend on each other
Chapter 12 The Circulatory System The Circulatory system, also known as the Cardiovascular system, consist of the heart, blood vessels, and blood. The.
14-1 THE BODY’S TRANSPORT SYSTEM
The Circulatory System
The Circulatory System
The Circulatory System
The Cardiovascular System
33.1 The Circulatory System
Circulation of Blood.
Circulatory System Objective 1-2.
The Circulatory System
The Circulatory System
Chapter 16: Circulation Section 1: The Body’s Transport Systems
7.L.3B.2 Construct explanations for how systems in the human body (including circulatory, respiratory, digestive, excretory, nervous, and musculoskeletal.
EQ: What is the role of the circulatory system?
The Body’s Transport System
The Circulatory System
What is it???? This muscle never stops working…
The Circulatory System
Cardiovascular System
Cardiovascular System
The Circulatory System
Circulatory system 7.L.3B.2 Construct explanations for how systems in the human body (including circulatory, respiratory, digestive, excretory, nervous,
Section 12.1 Your Cardiovascular System Objectives
EQ: How does blood flow through the heart?
Blood & circulation.
Blood & circulation.
CARDIOVASCULAR SYSTEM
The Circulatory System
Chapter 16 Section 1: Body’s transport system
The Circulatory System
Cardiovascular System
The Circulatory System
The Circulatory System
CARDIOVASCULAR SYSTEM
The Circulatory System
Presentation transcript:

Blood & circulation

Define these terms -Cardiovascular system -Heart -Atrium -Pacemaker -Ventricle -Valve -Artery -Capillary -Vein -Aorta -Coronary artery -Pulse -Diffusion -Blood pressure

Circulation Your body resembles a large roadmap, There are routes or “arteries” that take you downtown to the “heart” of the city.

3 Major Parts of the Circulatory system Blood Vessels - routes blood travels Heart – pumps or pushes blood through body Blood – carries important “ *stuff ” through body * Stuff – includes oxygen, food, & waste

# 1 Blood Vessels : One Way Streets Blood Vessels resemble very long and skinny tunnels that are all through your body.

Arteries The walls of arteries are generally very thick. In fact, artery walls consist of three cell layers.

Capillaries In the capillaries, materials are exchanged between the blood and the body’s cells. Capillary walls are only one cell thick. One way that materials are exchanged between the blood and body cells is by diffusion.

Veins After blood moves through capillaries, it enters larger blood vessels called veins, which carry blood back to the heart. The walls of veins, like those of arteries, have three layers, with a muscle middle layer.

The Heart 4 chambers ( or compartments ) 2 upper chambers : Left Atrium Right Atrium 2 lower chambers : Left Ventricle Right Ventricle

If you listen to your heartbeat, it makes a lub dub sound. The lub is when blood is pushed out of the heart into the body and the dub is the reloading of the heart with more blood ready to push it out to the body

Blood Flow through the Human Body Blood with little oxygen is pumped from the Right Atrium through a valve to the Right Ventricle and through another valve into the Pulmonary Vein. The Pulmonary Vein sends it to the Lungs to pick up Oxygen. It’s sent from the Lungs through Pulmonary Arteries to the Left Atrium through a valve to the Left Ventricle. The Left Ventricle sends it through a valve to the Aorta. The Aorta is a series of branches that sends oxygenated blood throughout the body.

Heart Rate can be determined using a Stethoscope

Heart Facts Hold out your hand and make a fist. If you're a kid, your heart is about the same size as your fist, and if you're an adult, it's about the same size as two fists. Your heart beats about 100,000 times in one day and about 35 million times in a year. During an average lifetime, the human heart will beat more than 2.5 billion times. Give a tennis ball a good, hard squeeze. You're using about the same amount of force your heart uses to pump blood out to the body. Even at rest, the muscles of the heart work hard--twice as hard as the leg muscles of a person sprinting.

Heart Beat Lab Purpose: How does physical activity affect your pulse rate? Hypothesis: Materials: stethoscope, stop watch What to do: First find your pulse in your wrist. Write down what you feel. Now, with your partner use the stethoscope and listen to his/her heartbeat. Count the number of beats in one minute. Record this number. Next, walk in place for one minute and then listen to your partner’s heart beats and count them for one minute. Finally, do this again after running in place for one minute. After you have rested for another minute, record the number of beats in a minute. The last rest time is three more minutes. Record the number of beats again that occur in one minute. Now, record all this information in a data table. Observation: Activity Pulse Rate At rest (before you start) Walking -1 minute Running – 1 minute Resting for one minute (after running) Resting for an additional three minutes

Conclusion Questions Create a graph of data table. What happened to your pulse rate when your physical activity stopped? What can you infer about the heartbeat when your pulse rate increased? What conclusion can you draw about the relationship between physical activity and your pulse rate? Explain how you could improve the accuracy of your pulse/heartrate measurement.

Your blood is made of Plasma Red Blood Cells White Blood Cells Platelets

YOUR BLOOD

Plasma Red Blood Cells Liquid part of blood Water makes up 90% They carry oxygen to all parts of the body hemoglobin

White Blood Cells Fight and kill germs that may enter your bloodstream

Platelets Pieces of cells that form “scabs” when you cut yourself Helps stop the bleeding fibrin

Blood Types There are 4 main Blood Types: Type A, Type B, Type AB, and Type O Blood types are determined by proteins known as marker molecules that are on the red blood cells.

Rh Factor All blood types are either positive or negative. If your blood type is Rh positive, you have the Rh marker, and if your blood type is Rh negative, you lack the marker on your cells.